5 September 1997 Mother Teresa dies at the Motherhouse in Calcutta at 9:30 pm.

23 October 1997 Archbishop Henry D'Souza petitions the Congregation for the Causes of Saints for a dispensation from the norm requiring a waiting period of five years after death so that he may initiate the Diocesan Inquiry into the Life, Virtues, and Reputation of Sanctity of Mother Teresa.

12 December 1998 Congregation for the Causes of Saints grants dispensation to Archbishop.

19 March 1999 The Superior Generals of the Missionaries of Charity appoint Father Brian Kolodiejchuk, M.C., as Postulator to oversee the Inquiry and Cause, and act on their behalf.

8 April 1999 The Bishops of the West Bengal region agree to introduce the Cause before the standard five-year period.

21 April 1999 The Congregation for the Causes of Saints issues the "Nihil Obstat" declaring there is no obstacle on the part of the Holy See to the Cause of Canonization of Mother Teresa.

11 June 1999 Postulator submits the petition to the Archbishop of Calcutta requesting him to initiate the Diocesan Inquiry; included is a Biographical Report and a List of Witnesses to be questioned.

12 June 1999 Archbishop makes public the Petition of the Postulator and declares he is initiating the Cause of Beatification and Canonization of the Servant of God Mother Teresa of Calcutta.

26 July 1999 The Official Opening of the Cause in St. Mary's Church, Calcutta. The Archbishop administers an oath to the 12 members of the Diocesan Inquiry Team.

This Opening begins the period of field research, interviews with eyewitnesses, and review of documents and materials pertaining to the life and work of Mother Teresa. Concluding in August 2001, this work produces 80 volumes of material, each approximately 450 pages, for presentation to the Congregation for the Causes of Saints.

15 August 2001 Closing session of the Diocesan Inquiry into the Life, Virtues, and Reputation of Sanctity of the Servant of God, Mother Teresa of Calcutta in St. Mary's Church. The Acts of the Diocesan Inquiry is to be carried to the Congregation for the Causes of Saints in Rome by the Postulator.

29 August 2001 The opening of the Transcript of the Acts of the Diocesan Inquiry into the Life, Virtues and Reputation of Sanctity of the Servant of God Mother Teresa.

22 September 2001 The Congregation for the Causes of Saints declares the validity of the Diocesan Inquiry of Calcutta and the Rogatory Inquiries.

The Congregation for the Causes of Saints appoints the Rev. Msgr. José Luis Gutiérrez Gómez as Relator of the Cause.

26 April 2002 The Positio is completed and given to the Congregation for the Causes of Saints for study.

19 June 2002 A panel of five medical experts unanimously affirms that the cure of Mrs. Monica Besra was instantaneous, complete, permanent, and scientifically inexplicable.

28 June 2002 A Congress of Theological Consulter unanimously affirms that the Servant of God Mother Teresa of Calcutta practiced the Christian virtues to a heroic degree.

6 September 2002 A second Congress of Theological Consulter unanimously affirms that the healing of Mrs. Monica Besra, was miraculous and is to be attributed to the intercession of the Servant of God.

24 September 2002 In Ordinary Session, the Cardinals and Bishops of the CCS, after hearing the report of His Eminence, Simon Cardinal Lourdusamy, the Proposer [Ponens] of the Cause, unanimously recognize that the Servant of God Mother Teresa of Calcutta practiced the theological, cardinal and other annexed virtues to a heroic decree.

1 October 2002 In Ordinary Session, the Cardinals and Bishops of the CCS, after hearing the report of His Excellency, Bishop Salvatore Fisichella, the Proposer [Ponens] of the Cause, unanimously confirm the existence of the miracle attributed to the intercession of Mother Teresa of Calcutta.

20 December 2002 His Holiness, Pope John Paul II, after receiving a full report, accepts and ratifies the vote of the CCS concerning the heroic practice of the Christian virtues by Mother Teresa and the miracle attributed to her intercession, and orders that the decrees concerning the same be made public. There follows the announcement that the Venerable Servant of God Mother Teresa of Calcutta is to be beatified on 19 October 2003.

19 October 2003 His Holiness, Pope John Paul II beatified the Venerable Servant of God Mother Teresa of Calcutta at St. Peter’s square

25 March 2016 His Holiness, Pope Francis , after receiving a full report, accepts and ratifies the vote of the CCS concerning the miracle attributed to her intercession, in the Consistory of Cardinals and Bishops in which, among others Causes, the Canonization of Blessed Teresa was approved.

4 September 2016 His Holiness, Pope Francis canonized Blessed Mother Teresa of Calcutta at St. Peter’s square, during the during this Extraordinary Jubilee of Mercy.